Around the 22 minute mark James West Lights a long fuse that will detonate an explosive under a bucket to blast him out of his prison cell. The explosive blows up with 3 inches left on the fuse. Not even close.
Obvious stunt double for Asmodeus (Don Rickles) in the final fight between him and West.
At 36:40, the manacles holding Artemus' wrists clearly have plenty of room for him just to slip out of them.
At 23:40, a close up on Don Rickles shows the left side of his false mustache has detached from his face.